[ET] JUN 6 CHEM A

Examples of scientific units

• mass

• gram (g)

• volume

• liter (L)

• joule

Scientific notation

• 1.00 x 10²

• 0.100 x 10²

• 10.0 x 10²

Significant figures (SigFigs)

• a calculated result that is rounded to the precision of the least precise measurement

• a calculated result that is rounded to the precision of the mostst precise measurement

How many Significant figures (SigFigs)?

100

• 1

• 2

• 3

How many Significant figures (SigFigs)?

100.

• 1

• 2

• 3

How many Significant figures (SigFigs)?

0.100

• 1

• 2

• 3

• 4

How many Significant figures (SigFigs)?

0.0100

• 1

• 2

• 3

• 4

• 5

Conversions

• 12 inches = 1 foot

• 1 foot - 12 inches

• 1 ft/12 in

• 12 in/1 ft

burning hydrocarbons is an example of

• combustion

• displacement

• melting sugar

burning hydrocarbons produces

• carbon dioxide

• water

• energy

• sugar